rubbing

Hello my sweet little parakeet BooBoo Chicken recently seemed sick so i took her to the vet. It started suddenly at night when she was rubbing her head on EVERYTHING very obsessively and sneezing like crazy and seemed very uncomfortable. So the next morning i took her to the vet and she did not...

Okay so my Chappo has defiantly gotten over his little mean streak..i think it had a lot to do with ensuring he got a good night sleep every night.. anyway.. now he is acting super lovey with me..always rubbing his beak on me.. what does that mean ????? Is that a behaviour I should not allow...